ធនធាន ដាក់​​​ស្លាក: Boron

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  1. Growing Anything Anywhere With the Garden Doctor: Book 3

    Book 3 explains deficiency symptoms of the following nutrients: Boron and Molybdeunum plus salinity, two or more deficiency symptoms, grow-box gardening, and Index.
    Diseases and Pests Plant Disease Disease Control Fruit Disease Salinity Boron Mineral Deficiencies

  2. Plant Nutrition Studies

    01 មករា 1971 It is the purpose of this booklet to suggest some ways of studying plants that may involve students more fully, especially in the design and development of elementary research suitable for school laboratories. Educational Products Division, LaMotte Chemical Products, Chestertown, MD 74 pages,...
    Plant Nutrition Nitrogen Iron Magnesium Potassium Content Phosphorus Calcium Sulfur Boron Zinc Copper Molybdenum Chlorine